Abstract
Polymerization of methyl methacrylate was carried out in the system of trans-PtHCL PEt8X organic halides. Effectiveness of organic halides in combination with the platinum complex for the polymerization decreased in the following order:CCI4 CHCI3 CH2C12; CHBr3 CHC13; CHC12-CHCI2 CJ32CI-CH2CL;CH2Br-CH2Br CH2C1-CH2CI; t-C4H9C1 s-C4H9C1 n-C4H9CI;C6H CH2C1 C8H5C1From the kinetic studies of the polymerization in the system of trans-PtIICl(PEta)2 and carbon tetrachloride over the lower concentration range of carbon tetrachloride, the rate of polymerization, R, was expressed as follows:R9= k[trans-PtHC1 (PEt3)2]05. [CC14]05.[MMA]19The apparent overall activation energy for the polymerization in this system was estimated to be 8.4 kcal/mol. Inhibition of polymerization by p-benzoquinone and hydroquinone and the copolymerization characteristics suggested that the polymerization of methyl methacrylate in this system proceeded by a radical mechanism.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
